Msd 7222 7AL-2 Ignition Control Installation- User Manual
Msd 7222 7AL-2 Ignition Control Installation– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – GENERAL INFORMATION; BATTERY; will operate with a supply voltage as low as five volts.; COILS; volt square wave signal with a 33% duty cycle.; SPARK PLUGS AND WIRES; electronics on your car.; Figure 2 Tach Terminal.
- Page 3 – Note: A larger plug gap taxes the cap, rotor and spark plug; MISCELLANEOUS INFORMATION
- Page 4 – WIRING; GENERAL WIRING INFORMATION; be soldered and sealed.; GROUND; When this wire is used,; connect to the alternator.
- Page 5 – Noise Capacitor: MSD offers a Noise Capacitor or Filter to; ROUTING WIRES; TROUBLESHOOTING; Common Mag Pickup Wires; Distributor; Figure 4 Common Mag Pickup Wires.
- Page 6 – an Adapter is necessary.; INOPERATIVE TACHOMETERS; operate, you will need a Tach Adapter. There are two Tach Adapters:; Ford: Install the Diode inline to the wire going to the “1” terminal.; Tachometer Compatibility List; AFTERMARKET TACHOMETER
- Page 7 – GM: Install the Diode in-line to the wire going; GM Delcotron Alternators use an internal; MISSES AND INTERMITTENT PROBLEMS; 0 volts during a race, the MSD output voltage will drop.; Figure 5 Installing the Diode to a GM or Ford Vehicle.
- Page 8 – CHECKING FOR SPARK; If triggering the ignition with the White wire:; Figure 8 Checking for Spark with Magnetic Pickup.
- Page 9 – MSD SYSTEMS Installing to Points/Amplifier Style Ignition.; On dual point setups, it; MSD SYSTEMS Installing to an MSD Distributor/Crank Trigger.
- Page 10 – MSD SYSTEMS Installing to an MSD Ready-to-Run Distributor
- Page 11 – GM IGNITIONS Wiring with an MSD to GM Wiring Harness.; NOTE: Installation of a Timing
- Page 12 – GM IGNITIONS GM Large Cap HEI Distributors.; NOTE: Some 5-pin models may experience a hesitation or stall on
- Page 13 – The stock rotor button must be
- Page 14 – HONDA IGNITIONS Wiring a Honda with Internal Coil.
- Page 16 – Limited Warranty; or consequential damages.; Service; When returning MSD components for warranty service,; Proof of Purchase must be supplied for verification. After; All returns must have a Return Material Authorization (RMA) number; issued to them before; M S D
Note:
Solid Core spark plug wires cannot be used with an MSD Ignition.
Note:
An MSD cannot be used on vehicles with CD ignitions or distributorless ignition systems.
Parts Included:
1 - MSD 7AL-2 Plus Ignition
1 - White Wire
1 - Mag Pickup Extension Harness, PN 8860
1 - Red Wire
1 - Mag Pickup Adapter Harness, PN 8859
4 - Vibration Mounts and Hardware
1 - Coil Harness, PN 8863
4 - RPM Modules: 3K, 7K, 8K and 9K
FEATURES
RPM LIMITERS
The 7AL-2 Plus Ignition is equipped with a 2-step rev control. The Ignition will accept two rpm
modules so two different rev limits can be set. One rev limit can be used for overrev protection while
the second limit can be activated on the starting line for a lower rpm limit to assist in staging and
for consistent holeshots. When 12 volts are applied to the 2-step terminal (2’S’), Module 1 is active.
Module 2 is active when there is no 12 volts.
CYLINDER SELECT
This ignition can be used on 2, 4, 6 (even-fire) or 8-cylinder engines. The ignition is set for 8-cylinder
operation. To program the unit for other engines, remove the one screw that holds the cover to reveal
three wire loops (Figure 1). Cutting a wire loop determines the cylinder selection.
SPARK LED
When the coil fires, current is sensed and this
LED will flash. This confirms that the ignition has
received a trigger signal and that the coil and
ignition are working properly. (If the coil is not
connected, the LED will not flash.) When the
engine is running, it will appear solid.
Cylinders Loops to Cut
8
None
6
One
4
Two
2
Three
Cut loops
Remove cap
WARNING: Before installing the MSD Distributor, disconnect the battery cables. When disconnecting
the battery cables, always remove the Negative (-) cable first and install it last.
Figure 1 Cylinder Programming.
MSD 7AL-2 Plus Ignition
PN 7222
ONLINE PRODUCT REGISTRATION: Register your MSD product online and you’ll be entered
in our monthly 8.5mm Super Conductor Spark Plug Wire give-away! Registering your product
will help if there is ever a warranty issue with your product and helps the MSD R&D team create
new products that you ask for! Go to www.msdperformance.com/registration.
M S D
• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
ONLINE PRODUCT REGISTRATION: Register your MSD product online and you’ll be entered
in our monthly 8.5mm Super Conductor Spark Plug Wire give-away! Registering your product
will help if there is ever a warranty issue with your product and helps the MSD R&D team create
new products that you ask for! Go to www.msdperformance.com/registration.
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Summary
2 I N S T A L L A T I O N I N S T R U C T I O N S M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 GENERAL INFORMATION BATTERY An MSD 7AL-2 Plus Ignition Control will operate on any negative ground, 12 volt electrical...
I N S T A L L A T I O N I N S T R U C T I O N S 3 M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 Spark Plugs: Choosing the correct spark plug design and heat range is important when trying to get the best performanc...
4 I N S T A L L A T I O N I N S T R U C T I O N S M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 WIRING GENERAL WIRING INFORMATION Wire Length: All of the wires of the MSD Ignition may be shortened as long as qualit...
